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研究高中物理问题时,经常使用v-t图像,利用v-t图像的抽象概括性,简化分析过程;利用v-t图像特有直观性,降低理解难度。加强对v-t图像应用的练习,用v-t图像巧解习题,可以提高学生解题兴趣,提高学生综合分析能力。一、采用v-t分析变力作用下的运动过程例1如图2所示,雨滴下落时所受到的空气阻力与雨滴的速度有关,雨滴速度越大,它受到的
In the study of high school physics, v-t images are often used to abstract the generalization of v-t images to simplify the analysis process. Using v-t images is unique and intuitive, which reduces the difficulty of understanding. Enhance the application of v-t image exercises, v-t image clever exercises, can improve students interest in solving problems, improve students’ ability to comprehensive analysis. First, the use of v-t analysis under the action of variable force Example 1 As shown in Figure 2, when the raindrops fall by the air resistance and raindrop speed, the greater the raindrop, it is subject to